<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html> <head> <!-- Generated by HsColour, http://code.haskell.org/~malcolm/hscolour/ --> <title>XMonad/Actions/UpdateFocus.hs</title> <link type='text/css' rel='stylesheet' href='hscolour.css' /> </head> <body> <pre><a name="line-1"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span> <a name="line-2"></a><span class='hs-comment'>-- |</span> <a name="line-3"></a><span class='hs-comment'>-- Module : XMonad.Actions.UpdateFocus</span> <a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) Daniel Schoepe</span> <a name="line-5"></a><span class='hs-comment'>-- License : BSD3-style (see LICENSE)</span> <a name="line-6"></a><span class='hs-comment'>--</span> <a name="line-7"></a><span class='hs-comment'>-- Maintainer : Daniel Schoepe <asgaroth_@gmx.de></span> <a name="line-8"></a><span class='hs-comment'>-- Stability : unstable</span> <a name="line-9"></a><span class='hs-comment'>-- Portability : unportable</span> <a name="line-10"></a><span class='hs-comment'>--</span> <a name="line-11"></a><span class='hs-comment'>-- Updates the focus on mouse move in unfocused windows.</span> <a name="line-12"></a><span class='hs-comment'>--</span> <a name="line-13"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span> <a name="line-14"></a> <a name="line-15"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>Actions</span><span class='hs-varop'>.</span><span class='hs-conid'>UpdateFocus</span> <span class='hs-layout'>(</span> <a name="line-16"></a> <span class='hs-comment'>-- * Usage</span> <a name="line-17"></a> <span class='hs-comment'>-- $usage</span> <a name="line-18"></a> <span class='hs-varid'>focusOnMouseMove</span><span class='hs-layout'>,</span> <a name="line-19"></a> <span class='hs-varid'>adjustEventInput</span> <a name="line-20"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span> <a name="line-21"></a> <a name="line-22"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span> <a name="line-23"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>StackSet</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>W</span> <a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span><span class='hs-varid'>when</span><span class='hs-layout'>)</span> <a name="line-25"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Monoid</span> <a name="line-26"></a> <a name="line-27"></a><span class='hs-comment'>-- $usage</span> <a name="line-28"></a><span class='hs-comment'>-- To make the focus update on mouse movement within an unfocused window, add the</span> <a name="line-29"></a><span class='hs-comment'>-- following to your @~\/.xmonad\/xmonad.hs@:</span> <a name="line-30"></a><span class='hs-comment'>--</span> <a name="line-31"></a><span class='hs-comment'>-- > import XMonad.Actions.UpdateFocus</span> <a name="line-32"></a><span class='hs-comment'>-- > xmonad $ defaultConfig {</span> <a name="line-33"></a><span class='hs-comment'>-- > ..</span> <a name="line-34"></a><span class='hs-comment'>-- > startupHook = adjustEventInput</span> <a name="line-35"></a><span class='hs-comment'>-- > handleEventHook = focusOnMouseMove</span> <a name="line-36"></a><span class='hs-comment'>-- > ..</span> <a name="line-37"></a><span class='hs-comment'>-- > }</span> <a name="line-38"></a><span class='hs-comment'>--</span> <a name="line-39"></a><span class='hs-comment'>-- This module is probably only useful when focusFollowsMouse is set to True(default).</span> <a name="line-40"></a> <a name="line-41"></a><a name="focusOnMouseMove"></a><span class='hs-comment'>-- | Changes the focus if the mouse is moved within an unfocused window.</span> <a name="line-42"></a><span class='hs-definition'>focusOnMouseMove</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Event</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>All</span> <a name="line-43"></a><span class='hs-definition'>focusOnMouseMove</span> <span class='hs-layout'>(</span><span class='hs-conid'>MotionEvent</span> <span class='hs-layout'>{</span> <span class='hs-varid'>ev_x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-varid'>ev_y</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>y</span><span class='hs-layout'>,</span> <span class='hs-varid'>ev_window</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>root</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <a name="line-44"></a> <span class='hs-comment'>-- check only every 15 px to avoid excessive calls to translateCoordinates</span> <a name="line-45"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varop'>`mod`</span> <span class='hs-num'>15</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-varop'>||</span> <span class='hs-varid'>y</span> <span class='hs-varop'>`mod`</span> <span class='hs-num'>15</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span> <a name="line-46"></a> <span class='hs-varid'>dpy</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>asks</span> <span class='hs-varid'>display</span> <a name="line-47"></a> <span class='hs-varid'>foc</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>withWindowSet</span> <span class='hs-varop'>$</span> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>peek</span> <a name="line-48"></a> <span class='hs-comment'>-- get the window under the pointer:</span> <a name="line-49"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>w</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>io</span> <span class='hs-varop'>$</span> <span class='hs-varid'>translateCoordinates</span> <span class='hs-varid'>dpy</span> <span class='hs-varid'>root</span> <span class='hs-varid'>root</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <a name="line-50"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>foc</span> <span class='hs-varop'>/=</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>focus</span> <span class='hs-varid'>w</span> <a name="line-51"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>All</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <a name="line-52"></a><span class='hs-definition'>focusOnMouseMove</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>All</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <a name="line-53"></a> <a name="line-54"></a><a name="adjustEventInput"></a><span class='hs-comment'>-- | Adjusts the event mask to pick up pointer movements.</span> <a name="line-55"></a><span class='hs-definition'>adjustEventInput</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span> <a name="line-56"></a><span class='hs-definition'>adjustEventInput</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withDisplay</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>dpy</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <a name="line-57"></a> <span class='hs-varid'>rootw</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>asks</span> <span class='hs-varid'>theRoot</span> <a name="line-58"></a> <span class='hs-varid'>io</span> <span class='hs-varop'>$</span> <span class='hs-varid'>selectInput</span> <span class='hs-varid'>dpy</span> <span class='hs-varid'>rootw</span> <span class='hs-varop'>$</span> <span class='hs-varid'>substructureRedirectMask</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>substructureNotifyMask</span> <a name="line-59"></a> <span class='hs-varop'>.|.</span> <span class='hs-varid'>enterWindowMask</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>leaveWindowMask</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>structureNotifyMask</span> <a name="line-60"></a> <span class='hs-varop'>.|.</span> <span class='hs-varid'>buttonPressMask</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>pointerMotionMask</span> </pre></body> </html>